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  1. So I took out my Steeda clutch spring...

    Do yourselves a favor and upgrade the clutch line. I just had my clutch fail at 30k. Never drag raced. I don't ride the clutch. I drive the car hard road race style for anywhere from 5 minutes to 15 minutes at a time (sustained high RPM over 4k), but I also rev match. I've had issues with the...
  2. OE Diff Cooler?

    I found this on the Ford parts web site. I'm assuming this is for GT350? But it lists it as compatible with my actual VIN I used. https://parts.ford.com/shop/en/us/powertrain-engine-parts/pump-rear-axle-cooling-7861501-1 Perhaps the 2019 PP Lvl 2's are finally getting a diff cooler? I'm...
  3. 2015-17 Mustang GT Ford Performance Power Packs

    Here is the dealership FUBAR in all it's glory...seriously, how did they manage to screw up this bad? I don't think I could manage that if I tried to!
  4. 2015-17 Mustang GT Ford Performance Power Packs

    Now if only Ford would do this clutch job without screwing up everything. This has been a royal PITA. Going on week #5 now. OE clutch took a dump at 30k. Never drag raced, but do lots of sustained high rpm road race style driving on back roads. I rev match, I don't ride the pedal. Last car at...
  5. 2015-17 Mustang GT Ford Performance Power Packs

    See image for details. BTW, whoever took that screenshot at Ford Performance for their user manual must have done it on a car with a drag setup...4.10's and only 710 revs per mile...short final drive with some TAAAALLLL tires...well and the fact that it says 2016 CobraJet. I'm really liking...
  6. 2015-17 Mustang GT Ford Performance Power Packs

    Just an FYI, airzona 91 is so crappy, that Engine Labs lost 70 HP at the crank on their 5th Gen LT1 6.2L they tested on an engine dyno. It was stock on stock tune, stock intake and headers. That's the engine in the 2014-present C7 vettes and 6th gen SS. There was so much knock, it pulled maximum...
  7. 2015-17 Mustang GT Ford Performance Power Packs

    But your forgetting you will never have stagnant air there just sitting and heating up unless your idling in traffic, not moving. The engine is will always draw a vacuum while running. Your also reducing cooling capacity of the radiator by choking off a pressure relief point under the hood. The...
  8. 2015-17 Mustang GT Ford Performance Power Packs

    Use aluminum roof flashing to make a "ramp", then aluminum foil tape to seal it off. You can get both at home depot. Both are water proof, in fact the foil tape has a tanacious adhesive that can even be applied under water. It's good up to 200+F, when that part of the car will never see. Then...
  9. Tick/Rattle and Timing

    1. Oil catch can. 5.0's are all sensitive to octane dilution when you run it hard. High revving DOHC V8...tends to vaporize oil, even good oil, more than other motors. 3rd gen are probably even more prone because of higher compression and rev range than the 2nd gen (well unless your running a...
  10. 2015-17 Mustang GT Ford Performance Power Packs

    There is some stagnation there, but it's hot backwash air from the radiator cooling fins. Not really a good place to pull air in for the intake. Also, and tubing you can run isn't going to have an appropriately design inlet to maximize flow. If you had some sort of intake ducting to that second...
  11. 2015-17 Mustang GT Ford Performance Power Packs

    Something to note, even though the GT350 air box won't hold positive pressure like a baloon would, if there's more air coming in than can leak out, your building positive pressure as long as the air is flowing. So the idea is to alleviate as many leaks as possible to keep the high pressure zone...
  12. 2015-17 Mustang GT Ford Performance Power Packs

    If your running the velossatek and sealing off the gap between the VT ram air duct and the GT350 CAI airbox intake tube as well as sealing the top of the air box like above, running a pickup line may create a pressure leak and result in lower air box pressure. Unless your pickup tube at the...
  13. 2015-17 Mustang GT Ford Performance Power Packs

    Also I found one more optimization we can use in conjunction with the Power Packs. They are the foundation, but we can do a bunch of different modifications to make best use of the capabilities as often as we can. Ignition. Iridium spark plugs have a high durability, but electrical conductivity...
  14. 2015-17 Mustang GT Ford Performance Power Packs

    Agreed, this has been something I've been wanting to do for quite some time. I'll see if I can get some pics of my foil tape / roof flashing mod on the VelossaTek to close off that gap in the ducting to the GT350 intake. I think the reason Ford Performance chose an open type was to balance...
  15. 2015-17 Mustang GT Ford Performance Power Packs

    Here are some proofs of the fuel mileage. The two six minute intervals are mostly over about a 15 mile portion of highway (some hills up and down). The rest is back roads having fun or 55 zones etc. where I'm not in 6th or not flat ground. Both of those were before I went back to PUP (was on...
  16. 2015-17 Mustang GT Ford Performance Power Packs

    TriboTEX lasts up to 40,000 miles in a typical passenger car. However if your track it frequently, your average RPM is going to be a lot higher than a car that's mostly daily driven, so the coating will wear out faster. I'm only guessing, but a performance street car like mine that sees frequent...
  17. 2015-17 Mustang GT Ford Performance Power Packs

    As you can see, a stock Alpha SS with the 5th gen LT1 6.2L walks all over a bone stock 2015-2017 PP GT. The OE tuning is just too anemic in Ford's 2nd gen 5.0 as it came from the factory. Also the 5th Gen LT1 runs a 11.5:1 compression vs. 11.0:1 and utilizes Direct Injection while the 2nd gen...
  18. 2015-17 Mustang GT Ford Performance Power Packs

    As promised, the thrust charts comparing a bone stock 2015 PP GT to my suggested Power Pack 2 Setup and also to my suggested Power Pack 3 setup. Each one is optamized for track speeds to make the most effective use of gearing and the power band of the 5.0 depending on the particular power pack...
  19. 2015-17 Mustang GT Ford Performance Power Packs

    I would highly suggest running TriboTEX DLC coating in conjunction with PUP GTL oils. The two work in harmony. TriboTEX is a hydrogenated type of DLC coating and PUP contains MoDTC (organic molybdenum friction reducing compounds, similar in function to MoS2 but without susceptibility to water...
  20. 2018 Mantic Clutch Noise

    Yah right now I'm trying to weigh my options. I can't keep sharing cars with my wife. I just got a loaner from the dealer finally but not sure how long they will lend it to me free of charge. Geoff at Mantic offered to replace the defective parts (weather it's the flywheel or the clutch disks)...





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